package service.impl;

import pojo.User;

public class UserService {
    //查询
    public User queryUserByName(String name){
        return null;
    }
    //添加
    public int addUser(User user){
        return 0;
    }
    //删除
    public int deleteUser(int id){
        return 0;
    }
    //修改
    public int updateUser(User user){
        return 0;
    }
    public User queryUserById(int id){
        return null;
    }

}
